[CentOS] 4 X 500 gb drives - best software raid config for a backup server?
Ian Forde
ian at duckland.org
Sat Feb 21 23:38:07 UTC 2009
On Sat, 2009-02-21 at 17:24 -0600, Les Mikesell wrote:
> Ian Forde wrote:
> > Might not be a bad idea to see how they're able to use
> > mdadm to detect and autosync drives. I don't *ever* want to go through
> > something like:
> >
> > http://kev.coolcavemen.com/2008/07/heroic-journey-to-raid-5-data-recovery/
> >
> > Not when a little planning can help me skip it... ;)
>
> If you are really concerned about data recovery and can chunk up your
> filesystem mount points so things fit on a single disk (usually not too
> hard with 1 or 1.5 TB drives available now) just use software raid1
> since you can simply mount any single disk from it and access the files.
> It becomes much more difficult with other raid levels or multi-disk lvm.
My point is that at home, I'd rather do network mounts to a fileserver
utilizing HW RAID. At work, I'd rather use HW RAID with hot-swap disks.
This way, there's are no hoops to go through. Time is a more important
resource to me... SW RAID is a path that I went down well over a decade
ago in Solaris (DiskSuite and Veritas VM), followed by Linux mdadm. If
you've ever had to do a Veritas encapsulated boot disk recovery, you'll
know why I'd rather never go down that road *ever again*... ;)
-I
-I
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